package io.File;

import java.io.File;

public class demo4 {
    public static void main(String[] args) {
        /*
            File f=new File("d:/java109");
            boolean ret=f.mkdir("d:/java109");//创建目录
         */
        File f=new File("d:/java109/aaa/bbb/ccc");//创建多级目录
        boolean ret=f.mkdirs();
    }
}




